btrfs: init ref_index to zero in add_inode_ref

Signed-off-by: Chris Mason <chris.mason@fusionio.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 67eab2d4d8a9..e9ebb472b28b 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1033,7 +1033,7 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
         int log_ref_ver = 0;
         u64 parent_objectid;
         u64 inode_objectid;
-        u64 ref_index;
+        u64 ref_index = 0;
         int ref_struct_size;
 
         ref_ptr = btrfs_item_ptr_offset(eb, slot);